7990443 has 6 divisors (see below), whose sum is σ = 11541764. Its totient is φ = 5326956.

The previous prime is 7990441. The next prime is 7990471. The reversal of 7990443 is 3440997.

It is not a de Polignac number, because 7990443 - 2¹ = 7990441 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7990398 and 7990407.

It is not an unprimeable number, because it can be changed into a prime (7990441) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 443905 + ... + 443922.

Almost surely, 2^7990443 is an apocalyptic number.

7990443 is a deficient number, since it is larger than the sum of its proper divisors (3551321).

7990443 is a wasteful number, since it uses less digits than its factorization.

7990443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 887833 (or 887830 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 7990443 is about 2826.7371650014. The cubic root of 7990443 is about 199.9203265983.

The spelling of 7990443 in words is "seven million, nine hundred ninety thousand, four hundred forty-three".